Recent Activities H. Loos 02/15/2011.

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Presentation transcript:

Recent Activities H. Loos 02/15/2011

Activities FACET NLCTA LCLS Bunch length monitor THz source Adopt LCLS HLA LCLS A-line profile monitor improvements and bunch length measurements OTR2 COTR study & mitigation Tuning time reduction task force New feedbacks troubleshoot & Matlab HLA upgrade Pulse stealing beam diagnostics

A-Line Experiments PR18 new screen Resolution target ~125 um vert. ~250 um hor. Smallest hor. size ~350 um Resolve double horn structure Measure < 2fs bunch length

OTR2 COTR Mitigation Transmission grating + TCAV0 to study laser heater induced COTR Multiple reflections 1st order 760 nm 1st order 380 nm 0th order 760 nm laser mirror as COTR band-pass filter not successful yet

Tuning Time Reduction Task Force Minimize MD recovery and experiment switching time Weekly meetings Identify and improve HLA usage issues Implement/improve event logging for HLA Get better metric on tuning time Improve accelerator setup reproducibility

Pulse Stealing Diagnostics Use TCAV3 1Hz event Set data slot 2 on PAU Tested for most PAU RF stations Implement emittance for LTU wires with fast feedback correctors